If the FXS port is SCCP controlled you could try the supplementary service for
AMWI and VMWI.
http://www.cisco.com/c/en/us/td/docs/ios/voice/fxs/configuration/guide/15_1/fxs_15_1_cg_book/fxsamwivmwi.html
Not sure if there is anything you can do for an h.323/mgcp port.
Thanks,
Ryan
On Apr 19,
I'm on a project currently migrating from legacy Nortel PBX to Cisco UC.
Customer has analog handsets connected to Nortel analog ports and they are
able to light an actual MWI lamp on the analog phone.
Migrate this phone to a VG350 with a SCCP controlled FXS port.
I get stutter dial-tone when
